Dome Skylight Spray Cooling Project of Zhongjun World City

The summer climate in southern China is hot, and the surface temperature of the dome glass can reach 60-75 degrees under the sun, which leads to high indoor temperatures in shopping malls, affecting people's enthusiasm for commercial activities. The spray cooling system developed by Guanyu Company is an efficient, energy-saving, and simple cooling device that uses water as the raw material. It utilizes an automatic variable frequency high-pressure plunger pump to pressurize the water, forming mist particles that are sprayed out. The mist quickly diffuses in the air and falls on the glass dome, continuously evaporating and absorbing a large amount of heat during the diffusion process. When the mist is sprayed on the glass dome roof, it lowers the temperature of the glass surface and the greenhouse. When the mist adheres to the dome glass, it exchanges heat with the glass, taking away the heat from the indoor environment. Additionally, when the mist adheres to the dome glass, the energy from solar radiation is absorbed and carried away by the mist, which acts like shading. The spray cooling system developed by Xiamen Guanyu Technology Co., Ltd. for the dome skylight of Zhongjun World City can effectively reduce the surface temperature of the dome glass by 20-40 degrees, thereby reducing air conditioning energy consumption and achieving energy-saving effects. This spray cooling system uses Guanyu's independently developed fully automatic temperature sensing control. After setting the temperature value, the system will automatically sense and start according to the set temperature value, and it can also automatically start and stop in different areas based on the specific zones. It can also be monitored and adjusted in real-time through a mobile app, saving labor and material costs.

1. Automatic sensing refers to the system automatically monitoring the temperature and transmitting the temperature value in real-time to the control system, which automatically starts the corresponding number and frequency of the spray cooling system based on the returned data.

2. Automatic start refers to the control system automatically starting and stopping the corresponding spray cooling system areas, mist volume, and frequency based on the data, thus saving unnecessary spraying in certain areas and avoiding resource waste.

3. Automatic variable frequency means that the system will automatically adjust the frequency to maintain constant pressure based on the number and area of the spray cooling, thereby saving electrical energy consumption.

The spray cooling host developed by Xiamen Guanyu Company is based on fresh health, low carbon, and environmental protection, aiming for mist landscaping, mist cooling, mist humidification, mist dust removal, mist disinfection, anti-static, and health care. Through high-pressure water treatment and atomization nozzles, water is instantly split into billions of micron water molecules, forming an organizational structure similar to clouds and mist, which can naturally float in the air to create a cloud-like effect, giving a fresh and natural feeling like being in a forest. Walking through it, one feels moist but will not easily wet clothes, delicate, natural, and perfect. At the same time, it can create a scene on its own or complement other related landscape elements.

The dome spray cooling of Zhongjun World City uses the main unit developed by Xiamen Guanyu Technology Co., Ltd., which is equipped with a Swiss silent ABB motor, an Italian high-pressure plunger pump, and electrical components from ABB and Schneider Electric from France. The nozzles are high-efficiency cooling nozzles imported from Taiwan, and the fittings include quick-connect four-way nozzle bases, quick-connect tees, quick-connect elbows, and quick-connect direct fittings. The pipes are made of 304 stainless steel high-pressure seamless pipes with a pressure resistance of 250KG.